Hi, I have a campus network with 3 -tiers, access, distribution and core layer, I have few questions as follows:1) in order to preserve end-to-end QoS, do i need any QoS configuration at Core switch ? if i don't even enable "mls qos" or configure "tr...

I have an ip phone connected to Cat3550 with the following configuration:interface FastEthernet0/32 switchport access vlan 311 switchport mode access switchport voice vlan 299 cdp enableWhen the phone successfully gotten the ip address (from dhcp) fr...

I have a cat6509 configured to talk to Radius server (ACS), as I understood that the IP address used by Cat6k to talk to ACS is by using the nearest interface ip, can i explicitly specify the source address used by Cat6k in this case ? thanks in adva...

Hi, I'd like to undertand what is the usage of "DHCP-Snooping Host-Tracking Information Option", when will that be used ? is it advisable to configured ? If someone can share with an example, that will be very much appreciated.ThanksKY

Is there any way to test UDLD ? as it's operate at Layer 2, by disconnecting one core of fiber wouldn't be able to test that as in this case Layer 1 is down.Thanks Kok Yong